Vignale355f said: Hi Al,
Thanks for the tip, it is not as easy as I thought. My problem will be what roots should be cut, some must be critical ...<Snip>
Actually, I think it's very easy. You don't express any emotional attachment to this plant ("it was my late mother's, grown from a seed that her grandmother filched from the first class cabin kitchen waste on her steerage class voyage from the old world..."). As such, and as lemons are not incredibly rare, I would follow the advice given by Tapla, with an exception. Recalling a study done (maybe at University of Washington?) they demonstrated that severely pot-bound plants being planted out did better with a fairly harsh VERTICAL trimming of roots, perhaps 20% distance from outer edge. That is, pull the plant from the pot and use a pruning saw (or some such) to slice vertically then replant.
One thing that I don't agree with (another respondent): I don't think you'll need to do anything to (mostly pointlessly) try to change the Ph of the soil.
